AGPTEK 3 Mode LED Light Up Shoe Shoelaces Shoestring Flash Glow Stick Strap for Party Hip-hop Skating Running Cosplay Decoration Each Shoelace is 2 feet long Lasts up to 70 hours Three modes: On, Strobe and Flashing Waterproof, washable, durable and safe With turn on/off switch and Powered by CR-2032 Watch Battery